2746-94-3

Basic information

• Product Name: 2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one
• Synonyms: 2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one
• CAS NO: 2746-94-3
• Molecular Formula: C₂₀H₁₈O₇
• Molecular Weight: 370.35
• Mol File: 2746-94-3.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one(2746-94-3)
• EPA Substance Registry System: 2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one(2746-94-3)

Safety Data

• Hazardous Substances Data: 2746-94-3(Hazardous Substances Data)

Upstream product

• 77394-26-4 β-photomethylquercetin 
• 1247-97-8 pentamethyl quercetin 

Downstream Products

• 37487-90-4 3-(2-hydroxy-4,6-dimethoxybenzoyl)-6,7-dimethoxy-1H-2-benzopyran 

Relevant articles and documents

Metabolites from the Purple Heartwood of Mimosoideae. Part 2. Acacia carnei Maiden: Isolation, Synthesis, and Reactions of Crombeone

The range of natural peltogynoid-type chalcone, flavonol, and dihydroflavonol analogues is extended by the recognition of carnein, β-photomethylquercetin, and (+)-2,3-trans-crombeone in the purple heartwood of Acacia carnei.The first synthesis of a 2,3-trans-peltogynone, crombeone tetramethyl ether, is effected and its catalytic reduction leads to a 2,3-trans-3,4-cis-peltogynol analogue.Crombeone itself is subject to a variety of methylene insertion reactions with diazomethane.